Sausage & Peppers Pasta

Ingredients

• 8 ounces uncooked pasta
• 1 pound Italian sausage
• 2 tablespoons butter
• ½ onion, diced
• 1 medium red bell pepper, diced
• 1 medium yellow bell pepper, diced
• 2 more tablespoons butter
• 4 cloves garlic, minced
• 1 heaping teaspoon flour
• 1 cup heavy cream
• 1 teaspoon Dijon mustard
• 2 cups fresh baby spinach
• S&P to taste
• Freshly grated parmesan for serving